spi: ftssp010_spi: Simplify code flow in ftssp010_[wait|wait_tx|wait_rx]

No functional change, just simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>

diff --git a/drivers/spi/ftssp010_spi.c b/drivers/spi/ftssp010_spi.c
index aa3b5a01cdf3160f44b1e171b29fca752c2f43c6..267e4d83bd0ea0e51af933a010cb6345c67b87e8 100644 (file)
--- a/drivers/spi/ftssp010_spi.c
+++ b/drivers/spi/ftssp010_spi.c
@@ -169,61 +169,49 @@ static int get_spi_gpio(int bus, struct ftssp010_gpio *chip)
 static int ftssp010_wait(struct ftssp010_spi *chip)
 {
        struct ftssp010_regs *regs = chip->regs;
-       int ret = -1;
        ulong t;
 
        /* wait until device idle */
        for (t = get_timer(0); get_timer(t) < CONFIG_FTSSP010_TIMEOUT; ) {
-               if (readl(&regs->sr) & SR_BUSY)
-                       continue;
-               ret = 0;
-               break;
+               if (!(readl(&regs->sr) & SR_BUSY))
+                       return 0;
        }
 
-       if (ret)
-               puts("ftspi010: busy timeout\n");
+       puts("ftspi010: busy timeout\n");
 
-       return ret;
+       return -1;
 }
 
 static int ftssp010_wait_tx(struct ftssp010_spi *chip)
 {
        struct ftssp010_regs *regs = chip->regs;
-       int ret = -1;
        ulong t;
 
        /* wait until tx fifo not full */
        for (t = get_timer(0); get_timer(t) < CONFIG_FTSSP010_TIMEOUT; ) {
-               if (!(readl(&regs->sr) & SR_TFNF))
-                       continue;
-               ret = 0;
-               break;
+               if (readl(&regs->sr) & SR_TFNF)
+                       return 0;
        }
 
-       if (ret)
-               puts("ftssp010: tx timeout\n");
+       puts("ftssp010: tx timeout\n");
 
-       return ret;
+       return -1;
 }
 
 static int ftssp010_wait_rx(struct ftssp010_spi *chip)
 {
        struct ftssp010_regs *regs = chip->regs;
-       int ret = -1;
        ulong t;
 
        /* wait until rx fifo not empty */
        for (t = get_timer(0); get_timer(t) < CONFIG_FTSSP010_TIMEOUT; ) {
-               if (!SR_RFVE(readl(&regs->sr)))
-                       continue;
-               ret = 0;
-               break;
+               if (SR_RFVE(readl(&regs->sr)))
+                       return 0;
        }
 
-       if (ret)
-               puts("ftssp010: rx timeout\n");
+       puts("ftssp010: rx timeout\n");
 
-       return ret;
+       return -1;
 }
 
 static int ftssp010_spi_work_transfer_v2(struct ftssp010_spi *chip,